validatethis.org

Get an email when its DNS, website or certificate changes.

validatethis.org serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate and MX records for mail.

Its busiest IP address is shared with 1,008 other domains, and 4 domains redirect to it.

The most recent crawl returned the page title “ValidateThis — Free Online Validators, Trust & Security Checks” and 92,933 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.org	Statistics for all domains we know under this TLD.
Has website	yes	A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record	yes	The domain has an MX record.
External redirect	no	The domain redirects to another domain.
Redirect to https	yes	The domain redirects to https.
Redirect to www.	no	The domain redirects to www.domain.
Only with www.	no	The domain can only be reached with the subdomain "www".
Only DNS, no website	no	There are no A or AAAA records in DNS.
IP-Address	Both	Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate	valid	Shows whether the domain has a valid SSL certificate.
Redirects	4	Number of domains that redirect to this domain.
Reverse IP	4,005	Number of domains with the same IP(s).

This data through the API

The data on this page is also available as JSON: /lookup for the key facts, /reverseip, /redirect and /similar for the lists, and /dnshistory with Basic and Premium. A free account comes with an API key and 100 calls a day.

curl -X POST https://api.webxtrend.com/v1.0/lookup \
  -H 'Content-Type: application/json' \
  -d '{"token": "YOUR_TOKEN", "query": "validatethis.org"}'

Create a free account Read the API docs

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Websites whose start page offers something similar, found by comparing the text of their start pages, across languages. Near-identical copies, parking pages and error pages are left out. The full list of up to 100 comes through the API: similar websites.

Last SSL certificate

Issuer	Google Trust Services
Valid from	9/22/2026
Valid to	12/21/2026
Time until expiry	58 days

Last successful crawl

Title	ValidateThis — Free Online Validators, Trust & Security Checks
Description	Free online validators and trust checks: websites, email, phone, SSL, SPF/DKIM/DMARC, JSON/XML/YAML, SEO, and AI visibility (AEO). Instant browser results with clear signals — plus optional API access for teams.
Content-Length	92,933 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

DNS history

IPv4 address	First seen
104.21.39.90	2/2/2026
172.67.144.3	2/2/2026
75.2.18.233	1/3/2025
104.21.112.1	12/12/2024
104.21.16.1	12/12/2024

IPv6 address	First seen
2606:4700:3033:0:0:0:ac43:9003	7/1/2026
2606:4700:3035:0:0:0:6815:275a	7/1/2026
2606:4700:3033:0:0:0:6815:275a	2/2/2026
2606:4700:3037:0:0:0:ac43:9003	2/2/2026
2606:4700:3030:0:0:0:6815:1001	12/12/2024

Mail server	Priority	First seen
eforward1.registrar-servers.com	10	2/2/2026
eforward2.registrar-servers.com	10	2/2/2026
eforward3.registrar-servers.com	10	2/2/2026
eforward4.registrar-servers.com	15	2/2/2026
eforward5.registrar-servers.com	20	2/2/2026

Name server	First seen
keyla.ns.cloudflare.com	2/2/2026
sterling.ns.cloudflare.com	2/2/2026
ns1.dyna-ns.net	1/3/2025
ns2.dyna-ns.net	1/3/2025
razvan.ns.cloudflare.com	12/11/2023

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

Domain	Last seen
securitytoolshub.com	10/21/2026
webhooktools.org	10/18/2026
seo-tools-hub.com	10/16/2026
aeo-tools.org	10/12/2026

Reverse IP neighbours

172.67.144.3 1,009 domains · here since 9/12/2026

Domain	On this IP since
zxell.ai	9/28/2026
zoodumpling.com.au	9/22/2026
zhonglove.com	9/13/2026
zep168s.biz	9/13/2026
zenenginemark.nl	9/13/2026
zavqlj.com	10/12/2026
zagency.fr	9/15/2026
ysldynasty.site	9/21/2026
youandtherapy.co.uk	9/19/2026
yjssms.com	9/22/2026
yjhhsd.com	10/20/2026
ygyggame.com.br	10/21/2026
and 996 more

104.21.39.90 1,008 domains · here since 9/12/2026

Domain	On this IP since
zxell.ai	9/28/2026
zoodumpling.com.au	9/22/2026
zhonglove.com	9/13/2026
zep168s.biz	9/13/2026
zenenginemark.nl	9/13/2026
zavqlj.com	10/12/2026
zagency.fr	9/15/2026
ysldynasty.site	9/21/2026
youandtherapy.co.uk	9/19/2026
yjssms.com	9/22/2026
yjhhsd.com	10/20/2026
ygyggame.com.br	10/21/2026
and 995 more

2606:4700:3033::ac43:9003 994 domains · here since 9/12/2026

Domain	On this IP since
zxell.ai	9/28/2026
zoodumpling.com.au	9/22/2026
zhonglove.com	9/13/2026
zep168s.biz	9/13/2026
zenenginemark.nl	9/13/2026
zavqlj.com	10/12/2026
zagency.fr	9/15/2026
ysldynasty.site	9/21/2026
youandtherapy.co.uk	9/19/2026
yjssms.com	9/22/2026
yjhhsd.com	10/20/2026
ygyggame.com.br	10/21/2026
and 981 more

2606:4700:3035::6815:275a 994 domains · here since 9/12/2026

Domain	On this IP since
zxell.ai	9/28/2026
zoodumpling.com.au	9/22/2026
zhonglove.com	9/13/2026
zep168s.biz	9/13/2026
zenenginemark.nl	9/13/2026
zavqlj.com	10/12/2026
zagency.fr	9/15/2026
ysldynasty.site	9/21/2026
youandtherapy.co.uk	9/19/2026
yjssms.com	9/22/2026
yjhhsd.com	10/20/2026
ygyggame.com.br	10/21/2026
and 981 more

Sharing an address does not always mean sharing a server: on a CDN or a large hosting platform, millions of unrelated domains answer on the same few addresses. We measured how far that goes in Half the web sits on 276 IP addresses. The complete list of neighbours, also for an IP address, comes through the API: reverse IP lookup.

Dive into our data, search now!